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„OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt,

„OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt, Horváth, Ferenc and Révész, András Institute of Ecology and Botany Vácrátót. Carpathian. Carpathian. Adriatic. Aster punctatus. Peucedanum officinale. Forest-steppe woodland. Flood-plain of the Körös river.

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„OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt,

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  1. „OUT-DOOR” INTERPRETATION OF SATELLITE IMAGES Biró, Marianna, Molnár, Zsolt, Horváth, Ferenc and Révész, András Institute of Ecology and Botany Vácrátót

  2. Carpathian Carpathian Adriatic

  3. Aster punctatus Peucedanum officinale

  4. Forest-steppe woodland

  5. Flood-plain of the Körös river 1780 woodland meadow + marsh 5 km settlement

  6. 1822

  7. 1860

  8. 1884

  9. 1940

  10. 1950

  11. 1998

  12. Recent and historical data sources Present-day field data (surveys) Topographic maps, soil maps etc. Aerial photos, satellite images

  13. flat steppe landscape

  14. Hortobágy alkali steppe

  15. Soil map Landsat TM, April Hortobágy alkali steppe Flood-plain 1783 Primary alkali steppe

  16. Pitvaros loess ridge alkali steppe marsh dry wet seasonally wet Pasture map (1805)

  17. Cloudy April image with wetlands Alkali steppe landscape (20 000 hectares) Reconstructed wetland network Borsodi-Mezőség

  18. „Out-door” interpretation of satellite images Iteration of field observation and interpretation 50-100 times a day for e.g. 20 field days. 1. What is the vegetation of certain areas? 2. What is their pattern in the landscape? 3. How the surrounding landscape looks like?

  19. The Hortobágy alkali steppe Covered with semi-natural vegetation Grasslands + wetlands + woodlands Alkali and non-alkali grasslands Primary and secondary grasslands Alkali meadows and marshes Wet meadows and drying-out meadows Drying-out meadows with Agropyron Alkali mud with/without Camphorosma

  20. Hortobágy alkali steppe

  21. Hortobágy alkali steppe

  22. Abandoned arable field with non-native trees Low natural value Ancient dunes with native trees High natural value Kiskunság sand dunes

  23. Kiskunság meadows

  24. „Out-door” interpretation of satellite images Adventages 1. Quick iteration 2. Locally validated, detailed „legend” 3. Always has some historical aspect Disadventages 1. Need of remote sensing experts 2. Technology is at home 3. Quality of waterproof prints 4. Satellites see „chlorofil+water+ soil”, not species/vegetation types

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